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On The Possibility Of Possible Worlds
Canadian Journal of Philosophy, 1975The notion of possible worlds — once an abstruse offspring of Leibnizian theology — seems to enjoy a new lease on life in the hands of contemporary modal logicians and semanticists. The phrase “possible world” crops up with increasing frequency, and, as it is the case with many philosophical catchwords, its very familarity creates a presumption of ...
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Possible Worlds and Possible Individuals
2023Abstract While this book endorses an ontological commitment to propositions, properties, and relations, it rejects a commitment to the existence of merely possible worlds or merely possible individuals. The aim of this chapter is to reconcile the rejection of these ontological commitments with a model theory for modal logic that seems to
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Theoria, 1991
This paper provides an intuitionistic account of possible worlds. The four forms of judgement of Martin-Löf's type theory \[ \begin{alignedat}{2} &A:\text{set } &&\text{ which means\quad \(A\) is a set}\\ &A=B:\text{set}\quad &&\text{ which means\quad \(A\) and \(B\) are equal sets}\\ &a:A &&\text{ which means\quad \(a\) is an element of the set \(A\)}\
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This paper provides an intuitionistic account of possible worlds. The four forms of judgement of Martin-Löf's type theory \[ \begin{alignedat}{2} &A:\text{set } &&\text{ which means\quad \(A\) is a set}\\ &A=B:\text{set}\quad &&\text{ which means\quad \(A\) and \(B\) are equal sets}\\ &a:A &&\text{ which means\quad \(a\) is an element of the set \(A\)}\
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Synthese, 2013
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Possible Worlds, Possible Minds
2020Abstract Across the world and across history, adults have developed widely divergent beliefs about people and their minds and actions, capacities and limits. Yet, these spring from, and depart from, early childhood theories, which are remarkably similar worldwide.
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Pragmatics & Cognition, 2013
The ability to think in abstractions depends on the imagination. An important evolutionary change was the installation of a suite of six imaginative activities that emerge at first in childhood, which include empathy, symbolic play, and theory-of-mind.
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The ability to think in abstractions depends on the imagination. An important evolutionary change was the installation of a suite of six imaginative activities that emerge at first in childhood, which include empathy, symbolic play, and theory-of-mind.
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The Genesis of Possible Worlds Semantics
Journal of Philosophical Logic, 2002In the article the author gives an interesting survey of the development of possible worlds semantics starting from the works of Wittgenstein (1913-1921), through the contribution of such authors as Feys, McKinsey, Carnap, von Wright and others, up to Bayart, Drake and -- of course -- Kripke (1958-1965). The early prehistory of this theory (in works of
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Impossible possible worlds vindicated
Journal of Philosophical Logic, 1975It has often been claimed that the by now familiar possible-two rids analysis of propositional attitudes like knowledge and belief which I have advocated since 1962 is unrealistic,1 if not downright mistaken, because it apparently commits us to the assumption of logical omniscience, that is, to the assumption that everyone knows all the logical ...
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Merely Possible Possible Worlds
2012This chapter first sketches a minimal theory of propositions—one that ascribes to propositions just the structure that anyone who is willing to talk of propositions at all must ascribe to them. It extends the minimal theory by adding some assumptions about the modal properties of propositions and possibilities, and then sketches a general model of ...
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Gödel, Mathematics, and Possible Worlds
Axiomathes, 2001Hintikka has claimed that Godel did not believe in possible worlds and that the actualism this induces is the motivation behind his Platonism. I argue that Hintikka is wrong about what Godel believed, and that, moreover, there exists a phenomenological unification of Godel’s Platonism and possible worlds theory.
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